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McDonald's Allergen Menu: The 9 Allergens and Where They Hide
McDonald's lists nine major allergens. The one that catches people out is fries: in the United States they contain wheat and milk, and that is an ingredient, not cross-contamination.
Table of Contents
Read this before you rely on any McDonald's allergen menu page, including ours. McDonald's changes recipes and suppliers, and preparation differs between restaurants. No third-party site can promise an item is safe for you today. Use this page to understand where allergens turn up and what to ask, then confirm every item on McDonald's own ingredients and allergen tool or in the app before you order. If your allergy is severe, speak to the manager on duty.
The McDonald's allergen menu covers the nine allergens the FDA requires US food businesses to declare. Most of them are where you would expect — wheat in buns, milk in cheese, egg in sauces. A few are not, and the fries are the clearest example: in the United States they contain both wheat and milk as ingredients, which surprises almost everyone who assumes potatoes and oil. This McDonald's allergen menu guide explains the nine allergens, where each one hides, which kitchen stations carry the highest cross-contact risk, and how to word an order. Full nutrition figures are on our McDonald's nutrition page, and the full board is on the McDonald's menu with prices.
Does McDonald's still have the McDonalds Grinch Meal?
No. The McDonalds Grinch Meal run started on 2 December 2025 and was sold while supplies lasted, with no fixed end date announced. Many restaurants ran out of socks well before Christmas, and the meal has not returned since. McDonald's has made no announcement about a 2026 run.
What was in the McDonalds Grinch Meal?
The McDonalds Grinch Meal held four things, packed in a Grinch-branded box. It was sold as an adult Happy Meal, the same format McDonald's has used since 2022 for collaborations aimed at grown-ups rather than children.
Adult Happy Meal, not a kids meal
This catches people out. The US version was aimed at adults and contained socks rather than a toy. Australia ran a separate children's version with twelve collectible Grinch toys, but that never reached American restaurants. Our Happy Meal page covers the standard kids offering.
How much was the McDonalds Grinch Meal?
McDonald's never published a national price, leaving it to franchisees. In New York City both versions were $18.89, which was among the highest recorded and drew a fair amount of comment at the time.
McDonalds Grinch Meal socks: all four designs
One pair came in each McDonalds Grinch Meal box, given at random rather than chosen. Each carried a printed message from the Grinch, and McDonald's suggested they could double as small stockings.
Where it ran, and whether it will come back
The US was not first. McDonald's Canada ran the idea in 2024, and several markets ran their own versions in 2025 with different contents. That sequence is the best guide to what happens next.
Australia got the version parents were looking for
Australian restaurants ran an actual children's Happy Meal with twelve collectible Grinch toys, plus a Frozen Fanta Lemon with green apple popping pearls. That never crossed to the US, where the promotion was adults-only. Menus by market are on our McDonald's international menu page.
Prices shown were recorded in December 2025 and are no longer current. Resale figures are observed listings, not valuations. Nutrition figures are McDonald's published US data for the standard items. McDonald's announcement is on its corporate newsroom, and the current board is on our McDonald's menu with prices.
McDonald's Allergen Menu FAQ
Are McDonald's fries gluten free?
Not in the United States. The natural beef flavouring added to the oil contains hydrolyzed wheat as a starting ingredient, so wheat is present as an ingredient rather than only through cross-contact. UK and European fries carry no beef flavouring and are certified gluten free in several markets.
Do McDonald's fries contain dairy?
In the US, yes. The same beef flavouring lists hydrolyzed milk among its starting ingredients. That is why American fries are not suitable for dairy-free, vegan or vegetarian diets. The same applies to hash browns.
How many allergens are on the McDonald's allergen menu?
Nine: milk, eggs, wheat, soy, peanuts, tree nuts, fish, crustacean shellfish and sesame. Sesame became the ninth US major allergen in January 2023 and matters at McDonald's because several buns are seeded.
Is anything on the menu gluten free?
McDonald's does not market a gluten-free menu in the US and does not operate a gluten-free kitchen. Some items contain no wheat as an ingredient, but shared fryers, toasters and surfaces mean no item can be treated as safe for coeliac disease. Ask the manager about your specific restaurant.
Which items sit lowest on the McDonald's allergen menu?
A plain hamburger without the bun, and sealed items like apple slices and bottled drinks. The beef itself is seasoned with salt and pepper only. Soy exposure through the kitchen still applies.
Which McDonald's items contain sesame?
Seeded buns, which includes the Big Mac and Quarter Pounder. The plain buns used on the cheeseburger and hamburger are not seeded, but the bun toaster is shared, so ask if your sesame allergy is severe.
What is the highest cross-contamination risk?
The McFlurry and shake machine. A single spindle mixes every flavour, so nut, wheat and soy traces can reach any dessert regardless of what it lists. If your allergy is severe, the dessert station is the part of the menu to skip.
Does Big Mac sauce contain allergens?
Yes — egg, soy and wheat, in one condiment. The egg comes from the mayonnaise-style base and the wheat from mustard bran. Full breakdown on our Big Mac page.
How should I tell staff about an allergy?
Use the word "allergy" and name the allergen. Saying "no cheese" reads as a preference; saying "I have a milk allergy, please change gloves" triggers a different handling protocol. Order at the counter rather than the kiosk so someone can answer questions.
Is this McDonald's allergen menu guide enough to rely on?
No, and no third-party McDonald's allergen menu is. McDonald's changes recipes and suppliers, and preparation varies between restaurants. Use this to understand where allergens appear and what to ask, then confirm each item on McDonald's own allergen tool or in the app. If your allergy risks anaphylaxis, speak to the manager and carry your medication.
Prices shown are based on typical U.S. McDonald’s menu prices as of August 2026 and may vary by location. Check your local restaurant or McDonald’s app for the latest prices.